A Comparative Study of Industry and Open-Source Efforts for 3D Visualization, Pre- and Intraoperative Planning, and 3D Printing of Skull Base Tumors: A Case Report - Costa, Anthony B.; Nicol, Kelly; Schlachter, Leslie; Iloreta, Alfred-Marc; Shrivastava, Raj; Bederson, Joshua B. (Journal of Neurological Surgery Part B: Skull Base, 2017)